In the fourth level of the pyramid, the energy transferred will be:
0.001 kcal
Since, A food chain's subsequent level can access 10% of any level's energy, therefore at the fourth trophic level, 0.001 kcal will be transferred from the lower levels.
What is an Energy Pyramid?A graphical representation of the flow of energy through each trophic level in an ecosystem is called an energy pyramid (sometimes referred to as a trophic pyramid or an ecological pyramid). Each bar's width, while always the same in height, symbolizes the energy units that are accessible at each trophic level. As energy is consumed by the creatures at each level, the flow of energy gradually decreases as it progresses through the layers of the energy pyramid. The primary producers themselves are represented by the energy at the bottom of the pyramid. Biological entities known as primary producers use energy from non-living sources to make their own food.Though there are some outliers, including deep-sea animals that use chemical energy from hydrothermal vents, most of these are photosynthesizing plants that use energy from the sun to make their own sustenance in the form of simple sugars.To learn more about Energy pyramids, refer to:
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What is Environmental media
Environmental media is the set of physical, chemical (abiotic factors), and external biological (biotic factors ) components that interact with living beings. It encompasses also the interactions between living organisms with each other and also with the abiotic factors, such as the weather and natural resources.
In 4 sentencesWhy is it important to appreciate the early discoveries about cells in understanding bodily functions?
Cells are the basic unit of the body of any organism.
Understanding how they work in various environments help to develope medicines or medical treatments. Knowing the process and how the cells of a determined part of the body work, you can develope medicine that will focus on that part and not have a general effect through all the body.
By knowing their basic needs, you can improve their functions by giving them the nutrients they need, this way, the organism will grow better. For example, if you want that a crop is more effective and the plant produces as much food as possible, knowing what it cells need will help out to improve the production.
There are three bones in the arm. How many are in the wrist and hand?
Answer:
The human hand has 27 bones: the carpals or wrist accounts for 8; the metacarpals or palm contains five; the remaining fourteen are digital bones; fingers and thumb. The palm has five bones known as metacarpal bones, one to each of the 5 digits. These metacarpals have a head, a shaft, and a base.
Match the monomer to the correct polymer. (Link one from the top list to one from the bottom list, until each one has a link to one from the other.
1a. polypeptide/protein
1b. polysaccharide
1c. nucleic acid
1d. lipid
2a. monosaccharide
2b. nucleotide
2c. fatty acid
2d. nucleotide
Simple molecules known as monomers can be combined to create chains to form polymers, a process known as polymerization that is mediated by polymerase enzymes.
Specific amino acid sequence molecules are added to make peptides and proteins/enzymes. Monosaccharides, like glucose, are added to create polysaccharides, which are complex enzymes & sugars. Nucleotide sequences molecules combine to create chains or strands that make up a nucleic acid molecules, such as DNA or RNA. Fatty acid enzymes are polymerized into lipids.
Nucleic acid - NucleotideLipid - Fatty acidPolypeptide/protein - Amino acidPolysaccharide - MonosaccharideLearn more about Enzymes
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What does the slope of the graph between years 2 and 5 represent
In the graph we see the population of primary and secondary consumers, this means, herbivores and carnivores.
We can see that their population decreases within the first year after the fire, which we can attribute to the lack of food for primary consumers, which causes a population reduction on them and, consequently, on secondary consumers.
The population grows again after year one, which means the producers population showed growing too.
From the options, this means that there was an increased transfer of energy from producers to consumers (D)
What changes in homeostasis would be most dangerous for you if any of your body's homeostasis systems failed? Rank them on a scale (1-6) with 1 being the most dangerous and 6 being the least dangerous.
- A change in body temperature
- A change in concentration of blood sugar
- A change in concentration of oxygen
- A change in concentration of electrolytes
- An increase in the concentration of waste
- An increase in the concentration of carbon dioxide
A change in body temperature will be affected if any of body homeostasis failed. Homeostasis maintains the temperature of internal body.
How is homeostasis kept in check?A number of control systems operating at the organ, tissue, or cellular level keep homeostasis in place. The provision of substrates, the activation or inhibition of specific enzymes and receptors, the synthesis and decomposition of enzymes, and compartmentalization are some of these regulatory mechanisms.
The goal of homeostasis is to keep the internal environment in place without being overpowered by outside factors that could upset the balance.
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Different model types work best for different situations. When would you use each of the following models?
Need help ASAP please!!
Computer-generated models-
Photograph of a bone-
Plastic Bone-
Dissected Pig-
Computer-generated models- This is more efficient than building a genuine model out of materials since the model can be changed using the programme, which saves time and money.
Photograph of a bone- By using an X-ray machine, we may take a picture of a bone. These images are used by doctors to inspect the bone's fractures and dislocations.
Plastic Bone- Artificial bone is a term used to describe bone-like material produced in a lab that may be used in bone transplants to replace human bone that has been lost as a result of serious fractures, illness, etc.
Dissected Pig- Piglets that aren't utilised for classroom dissections are frequently used as fertiliser or are just thrown away.
What makes biological modelling crucial?Models are used by biologists in almost all areas of scientific inquiry, study, and communication. Models are useful tools for describing concepts and explanations, and scientists use them frequently to explain, comprehend, and forecast phenomena that take place in the natural world.
Understanding how biological elements including genetics, biochemistry, nervous system physiology, and evolution affect human behaviour is the goal of the biological approach to psychology.
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9. Which of the following best explains what viruses do in order to reproduce?They reproduce sexually by external fertilization.They use ribosomes and molecules inside a host cell to reproduce.They reproduce asexually by dividing by mitosis.They use energy derived from consuming a host cell to reproduce.
What best explains how viruses reproduce is that they use ribosomes and molecules inside a host cell to reproduce.
Your nasal passages (nostrils) lead to which type of depression?
sinus
tuberosity
ramus
facet
Answer:
Compared to people without sinus issues, those with chronic rhinosinusitis and nasal polyps were 41 percent more likely to develop depression after the sinus issue was diagnosed and 45 percent more likely to develop anxiety, the study found
Explanation:
The greenhouse effect occurs when:A. An overabundance of green plant growth increases the temperature on Earth.B. Some infrared radiation is reflected back to Earth by the atmosphere, warming theplanet.C. Production of greenhouses has increased the temperature in those local areas.D. Light is trapped on Earth and cannot escape to space.
The greenhouse effect occurs when our planet's atmosphere is overheated by the arriving sun rays that get trapped in the large amount of air pollutants, such as carbon dioxide, methane, but also water in form of steam. This is mainly caused by anthropic contamination, such as the combustion of fossil fuels.
We can say then that the correct answer is the last one: D. Light is trapped on Earth and cannot escape to space. The CO2 molecules, and the other ones, absorb the temperature from the sun and make the surrounding air to warm up too.
Drag the item from the item bank to its corresponding match.
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
This is a cell or organism having half of the diploid chromosome number, symbolized by "n".
This is an organism or cell with two sets of chromosomes.
This holds an organisms hereditary information.
This is a haploid cell with half the reproductive information from the parent.
This is the structure in the cell nucleus that houses a cell's genetic information.
Answer:
The picture down below is the correct answer.
Explanation:
I toke the test
only an answerits not a test its my summer work
Hybrid animals are those that originate from the crossing of two different species.
Among the options presented, we can say that the hybrid animal is the Libre which comes from the cross between a lion and a tigress.
So the answer is "Liger".
Explain why giraffes have long in your explanation include the role of the environment,selective pressure, 3 ingredients to NS, The effect on the population and allele frequency
This is a classic example used in evolution however is used only to explain differences between Lamarckian theory and Darwinian theory, nonetheless with recent tools can be explained in more detail.
Classically is proposed a population of giraffe with certain variations in neck length, this is given by genetics and alleles, all populations possess a certain pool of variation, now according to Darwin the giraffes with longer necks were selected as their fitness survival was increased due to this trait, Giraffes with longer necks could access to more vegetation and nourish better, in consequence, reproduced more than those of short neck, also when competing intraspecifically among giraffes those with longer necks were better competitors increasing also their survival rate, in time giraffes with short neck were extinguished and selective pressure continue favoring those of long neck, this in genetics meant the fixation of the allele of long neck and an increase in the frequency of the same.
What part of your arm is most proximal?
shoulder
elbow
wrist
fingernail
Answer-head of the humerus
PLEASE HURRY I WANT TO FINISH
The table below shows the precipitation in four locations:
Average Annual Precipitation
Location Precipitation in millimeters
A 972
B 1,824
C 345
D 1,618
Which location is most likely to experience flooding?
Location A
Location B
Location C
Location D
1
Sonya says her interest in reality competition shows is waning. What is the state of her interest in these shows?
it's in decline .
Option A is correct
Why are reality shows produced?A reality show is a category of television that seeks to depict how regular people act in real-world settings or in situations that are typically produced by programmers to reflect real-world situations.
Reality shows: What are they?A television show that is more intended to entertain than to teach, and in which regular people are continually being videotaped.
Why is a reality show compelling?Watching other people's life can be entertaining, especially when the competitors on reality TV shows frequently get to go on enjoyable adventures and experience things that most regular people would not. People enjoy reality TV in large part because they enjoy watching intriguing storylines develop.
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The question you are looking
Sonya says her interest in reality competition shows is waning. What is the state of her interest in these shows?
A .it's in decline
B. it's growing
C. it's stable
D. it's nonexistent
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Where in a woman's body does implantation of a fertilized egg most oftentake place?A. UterusB. Cervixc. OvaryD. Fallopian tube
As we know ova are produced in the ovaries, fertilization occurs in the fallopian tube, where the zygote is formed, and later descends into the uterus, where the embryo implants in the wall of the endometrium. Therefore we can say that the correct answer is option A.
2. You step outside on a 90 degree summer day. After 1 minute. your body beginsto sweat. As the sweat evaporates off your skin, heat is lost from the body andyour internal temperature begins to decrease.ChoosePositive feedbackNegative feedback
The hypothalamus tells the eccrine sweat glands throughout the body that it's time to sweat and cool down.
Increased sweat gland recruitment but also increased perspiration per sweat gland. Also, dehydration fluid loss and associated plasma hyperosmolarity and hypervolemia reduce sweating volume and sensitivity and increase the sweating threshold. As the body continues to warm up, the heart beats faster and the blood draws closer to the surface of the skin.
Your blood vessels will dilate your skin will turn rosy and you'll begin to sweat lovingly. Sweat seeps through your pores and evaporates, taking heat away from your body. As the heart rate increases, more blood is pumped from the outside of the body and through the skin, causing excess heat loss to the surroundings and sweating. These changes place additional demands on the body. Altered blood flow and excessive sweating reduce physical and mental performance.
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how do molecules compare and contrast the way diffusion and facilitated diffusion
Explanation:
High School wringer equation
Identify the highlighted structure.
Answer:
Hepatic portal venule
Prokaryotes can be divided by the way they obtain energy and nutrients. Which of the following correctly matches the name of a group of prokaryotes with the source of their energy and nutrition?aChemoautotrophs—from sunlight through photosynthesisbHeterotrophs—from molecules that contain sulfur or nitrogencPhotoautotrophs—from sunlight through photosynthesisdChemoautotrophs—from other organisms
Chemoaotrophs are organisms that obtain energy from inorganic molecules, they are able to use chemicals that are good electron donors, such as hydrogen, sulfur, or iron.
Heterotrophs are organisms that obtain energy from other organisms, i.e. they are organisms that eat plants or animals to live.
Photoautotrophs are organisms that obtain energy from light, these organisms are also called photosynthetic organisms.
A cliff near the water has been worn away. How did erosion change the shape of the land?
The terrain frequently changes shape due to erosion. Similar to how water and wind move across land, they frequently sweep away soil particles and erode rock. Therefore, after many years of this ongoing process, the cliff, hills, and mountains get smaller.
It frequently rips through the earth to create ditches, canyons, and valleys. Water moving across the surface of the earth in rivers and streams carries along dirt and erodes rock fragments, shaping the land in the process.
Topsoil loss decreased agriculture yields, infrastructure damage, weed dispersal, etc. are all consequences of water erosion.
What causes Water Erosion?
Raindrops striking bare soil and the force of flowing water on the soil's surface both contribute to erosion. The ability of the site to support vegetation is determined by the intrinsic soil characteristics, slope, and climate, which combined dictate natural erosion rates.
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Do you think the gene for aromatase is always present in a crocodile’s DNA? Assuming the gene itself is temperature sensitive, describe what this means using your understanding of gene expression.
The production of estrogen is carried out by this enzyme. By aromatizing, aromatase primarily turns androgens into estrogens. AIs have the potential to suppress estrogen synthesis by preventing aromatase production.
What is the effect of temperature on gene expression?In general, rising temperatures sped up development, and the sooner any particular targeted gene's expression response was triggered, the higher the temperature.
More specifically, larval yolk utilization and growth rates rose, while yolk utilization effectiveness fell as temperature rose.
Therefore, aromatase is always present in a crocodile’s DNA for sex determination.
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Which of these lines of evidence would not be used by a biologist to determine the relationship between two organisms?
Embryology and molecular bonds are not used determine the relationship between two organism .
Embryology is a branch of science that is related to the formation, growth, and development of embryo. It deals with the prenatal stage of development beginning from formation of gametes. Embryology provides evidence for evolution since the embryonic forms of divergent groups are extremely similar.
Molecules are a group of atoms that have been held together by chemical bonds. Molecules are held together because the positive and negative charge of the atom to attract each other. So, they are not used to determine relationship between two organism .
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How does the nervous system affects the shaping of our own personality
Answer:
Your nervous system guides almost everything you do, think, say or feel. It controls complicated processes like movement, thought and memory. It also plays an essential role in the things your body does without thinking, such as breathing, blushing and blinking.
:)
C is a dominant gene for a cleft chin, and c is a recessive gene for not having a cleft chin. If a cc genotype parent reproduces with a CC, what is the phenotype of the offspring?
A. All have a cleft chin.
B. 25% have a cleft chin, and 75% do not.
C. None have a cleft chin.
D. Half have a cleft chin, and half do not.
Answer:
A
Explanation:
I think the answer is A because when you cross the genes you got Cc,Cc,Cc,Cc so its phenotype is looks like have a cleft chin.
what would be expected for the formation of an α-helix, for a segment of a protein chain that contains lysine approximately every fourth residue with all other residues being mostly hydrophobic?
A high pH will favour helix formation for a protein chain with every fourth residue being lysine and all the residues being hydrophobic.
It is known that lysine is one of the amino acids that are more likely to form alpha helixes. Lysine generates an alpha helix formation when the side chain is uncharged. The arrangement of side chains away from one another and the alpha helix's hydrogen bonding with the peptide backbone contribute to its stability. The lysine side chain will be protonated when the pH is low. As a result, there will be repulsion between these charged side chains in the alpha helix formation, lowering the structure's stability. Therefore, the most favourable environment for the formation of alpha helixes is an increase in pH.
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QUESTION 1 [10]
Look carefully at the electron micrographs in Figure 1.
1.1. Describe the differences between the cell that died by (A) necrosis and the one that died by
(B) apoptosis. (6)
1.2. How do the pictures confirm the differences between the two processes? Explain your answer (4)
Figure 1: Cell death by (A) Necrosis and (B) Apoptosis
QUESTION 2 [15]
2.1. Explain how the lac operon is both positively and negatively controlled. (2)
2.2. A mutation within the promoter region can alter transcription of a gene. Describe how this can
happen. (3)
2.3. Summarize the negative repressible feedback mechanism when operated by an operon. (5)
2.4. Describe the process of repression in the trp operon. (5)
QUESTION 3 [15]
3.1. List and explain four (4) ways in which new genes can be generated from pre-existing genes. (8)
3.2. Write a brief description of the three (3) main types of non-covalent bond. (3)
3.3. Describe the two (2) main classes of membrane transport proteins. (4)
QUESTION 4 [20]
4.1. Draw the chemical structure of DNA including the complementary base pairs in the DNA double
helix. (10)
4.2. Describe how the complementarity of DNA provides the mechanism for heredity and how DNA
acts as a template for its own duplication. (10)
QUESTION 5 [20]
5.1. In your own words, explain the principle of how gel electrophoresis of DNA separates the
molecules according to size. (5)
5.2. Discuss the cloning laboratory technique. (5)
5.3. Explain the importance of polymerase chain reaction (PCR) during the DNA sequencing
process. (10)
QUESTION 6 [20]
6.1. Discuss why gene regulation is important. (6)
6.2. Describe how controlling gene expression will alter the overall protein levels in the cell. (6)
6.3. List the differences in the regulation of gene expression of prokaryotic and eukaryotic
organisms.
High resolution and a strong magnification are both provided by an electron microscope.
Applications for electron microscopy are numerous in technology, business, and academic study. It can be utilized, for instance, in the inspection of semiconductors, the production of computer chips, and quality assurance testing.
What is Electron Micrographs ?A picture produced by irradiating a sample with a tightly focused (10 nm diameter) electron beam while applying an acceleration voltage, then observing the transmitted, secondary, backscattered, and diffracted electrons as well as the distinctive X-rays that resulted from this process.
To view smaller organelles like ribosomes, macromolecular complexes, and macromolecules, an electron microscope is required. Light microscopy makes it impossible to see features like cell membranes, ribosomes, filaments, and tiny granules and vesicles up close.
What is Apoptosis ?In multicellular organisms, apoptosis is a type of planned cell death that takes place. Cell death and distinctive cell alterations are caused by biochemical processes. Blebbing, cell shrinkage, nuclear fragmentation, chromatin condensation, DNA fragmentation, and mRNA degradation are some of these alterations.
The process of programmable cell death is called apoptosis. Unwanted cells, such as those between a developing hand's fingers, are removed during the early stages of development. Adult bodies employ apoptosis to get rid of cells that can no longer be repaired. Apoptosis aids in the prevention of cancer.
What is Necrosis ?The death of bodily tissue is called necrosis. It happens when the tissue receives insufficient blood flow. This may result from radiation, toxins, or physical harm. There is no reversing necrosis.
Avascular necrosis and gangrene, which are brought on by a lack of blood flow to the affected area, necrotizing fasciitis, which is brought on by a bacterial infection that spreads quickly, and loxoscelism, which is caused by the venom from a recluse spider bite, are notable conditions that result in necrotic tissue death (Loxosceles)
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Please help and I will give brainlest!!
use the image to answer the question
This image of a roller coaster is designed to show important information about potential and kinetic energy. One of these labeled pieces of information is incorrect. Which information is wrong, and why?
A. The spot with the “maximum kinetic energy” should be on the lowest point of the roller coaster, at the far left side on the bottom.
B. The spot marked “maximum gravitational potential energy” should be on the lowest point of the roller coaster, at the far left side on the bottom.
C. The roller coaster would only have kinetic energy at the point labeled “gravitational potential energy and kinetic energy.”
D. The roller coaster would only have potential energy at the point labeled “gravitational potential energy and kinetic energy.”
According to the scenario of the Roller coaster, the one label piece of information that is incorrect is the roller coaster would only have kinetic energy at the point labeled “gravitational potential energy and kinetic energy.” Thus, the correct option for this question is C.
What is Kinetic energy?Kinetic energy may be defined as a type of energy that is significantly acquired by motion. It is energy that is possessed by an object or thing due to its motion. So, this energy is also known as energy due to motion.
According to the context of this question, the kinetic energy is stored throughout the roller coaster except for the point "maximum gravitational potential energy."
So, the option is fairly untrue or incorrect because it is saying that the roller coaster would only have kinetic energy at the point labeled “gravitational potential energy and kinetic energy.” While kinetic energy is found to be highest at the point of "maximum kinetic energy."
Therefore, the correct option for this question is C.
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Different model types work best for different situations. When would you use the following model? Need help ASAP please!! Due very soon. Thank you!!
Computer-generated models-
Photograph of a bone-
Plastic Bone-
Dissected Pig-
Answer
Computer-generated models
Explanation
Computer models are widely used to show real-life situations. Many biological, physical, chemical and engineering processes are easily simulated using a powerful computer system.
Therefore, the formation of blood cells can also be adequately simulated using a powerful computer system, hence the answer above.
